[1] He served in various roles in the UPDF Air Force, primarily as a flight instructor on both the L-39 Albatros and the MIG-21 equipment.
In 2008 he flew aerial missions in the war against Joseph Kony and the Lord's Resistance Army in the Garamba National Forest in the Democratic Republic of the Congo.
He also fought in the war against the Allied Democratic Front terrorist group in Western Uganda and Eastern DR Congo.
He was then appointed Deputy Commander of UPDF Air Force, deputizing Lieutenant General Charles Okidi.
[1][3][4] Brigadier Kiggundu was electrocuted while taking a shower in the bathroom of his official residence in the city of Entebbe, on the evening of Sunday 31 March 2024, three days shy of his 47th birthday.
[3][5][6] He was buried on 4 April 2024 at his ancestral home, in Kijambura Cell, Nyangahya Division, Kikwanana Ward in Masindi District, Bunyoro sub-region, in Uganda's Western Region.